Derivative Rules Derivative is a term used in differenciation. When we use differentiation on any function then its result is actually called derivative. Differentiation is actually a method used in calculus to calculate the rate of change of one function with respect to another function. The results comes out as a rate of change this result is called derivative. We can read this derivative as the rate of chaneg of y with respect x. Derivativerules.com~Site InfoWhoisTrace RouteRBL Check